____________________
:
the
starting
point
of
the
river
.
____________________
____________________
:
the
initial
stage
of
the
river
in
the
mountains
.
____________________
____________________
:
where
the
river
flows
more
slowly
through
landscape
.
____________________
____________________
:
in
this
final
stage
the
river
flows
slowly
and
deposits
the
rocks
that
it
has
dragged
along
whith
it
and
forms
curves
called
____________________
.
The
____________________
:
at
the
final
stage
the
water
carried
by
the
rivers
flows
into
another
river
,
____________________
or
sea
.